mirror of
https://github.com/graphql-python/graphene.git
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81 lines
2.7 KiB
Markdown
81 lines
2.7 KiB
Markdown
#  [Graphene](http://graphene-python.org) [](https://travis-ci.org/graphql-python/graphene) [](https://badge.fury.io/py/graphene) [](https://coveralls.io/github/graphql-python/graphene?branch=master)
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[Graphene](http://graphene-python.org) is a Python library for building GraphQL schemas/types fast and easily.
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- **Easy to use:** Graphene helps you use GraphQL in Python without effort.
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- **Relay:** Graphene has builtin support for Relay
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- **Django:** Automatic *Django model* mapping to Graphene Types. Check a fully working [Django](http://github.com/graphql-python/swapi-graphene) implementation
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Graphene also supports *SQLAlchemy*!
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*What is supported in this Python version?* **Everything**: Interfaces, ObjectTypes, Scalars, Unions and Relay (Nodes, Connections), in addition to queries, mutations and subscriptions.
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**NEW**!: [Try graphene online](http://graphene-python.org/playground/)
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## Installation
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For instaling graphene, just run this command in your shell
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```bash
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pip install graphene
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# In case of need Django model support
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pip install graphene[django]
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# Or in case of need SQLAlchemy support
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pip install graphene[sqlalchemy]
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```
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## Examples
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Here is one example for get you started:
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```python
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class Query(graphene.ObjectType):
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hello = graphene.String(description='A typical hello world')
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ping = graphene.String(description='Ping someone',
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to=graphene.String())
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def resolve_hello(self, args, info):
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return 'World'
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def resolve_ping(self, args, info):
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return 'Pinging {}'.format(args.get('to'))
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schema = graphene.Schema(query=Query)
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```
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Then Querying `graphene.Schema` is as simple as:
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```python
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query = '''
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query SayHello {
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hello
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ping(to:"peter")
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}
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'''
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result = schema.execute(query)
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```
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If you want to learn even more, you can also check the following [examples](examples/):
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* **Basic Schema**: [Starwars example](examples/starwars)
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* **Relay Schema**: [Starwars Relay example](examples/starwars_relay)
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* **Django model mapping**: [Starwars Django example](examples/starwars_django)
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* **SQLAlchemy model mapping**: [Flask SQLAlchemy example](examples/flask_sqlalchemy)
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## Contributing
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After cloning this repo, ensure dependencies are installed by running:
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```sh
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python setup.py install
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```
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After developing, the full test suite can be evaluated by running:
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```sh
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python setup.py test # Use --pytest-args="-v -s" for verbose mode
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```
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